On Fri, 4 Sep 2015 16:26:31 +0200 Jiri Olsa <jo...@redhat.com> wrote:
> On Fri, Sep 04, 2015 at 10:14:28AM -0400, Raphaël Beamonte wrote: > > 2015-09-02 3:56 GMT-04:00 Jiri Olsa <jo...@kernel.org>: > > > Adding name__mount (where name is in sysfs,procfs,debugfs,tracefs) > > > interface that tries to mount the filesystem in case no mount is found. > > > > > > Link: http://lkml.kernel.org/n/tip-ja49vwfiq2qqkmoxx9yk2...@git.kernel.org > > > Signed-off-by: Jiri Olsa <jo...@kernel.org> > > > --- > > > tools/lib/api/fs/fs.c | 44 +++++++++++++++++++++++++++++++++++++++----- > > > tools/lib/api/fs/fs.h | 15 +++++++++++---- > > > 2 files changed, 50 insertions(+), 9 deletions(-) > > > > Why automatic mounting the **fs filesystems? > > Isn't it better to let the user decide when and where to mount it if > > s/he forgot to do it before? Forcing a mount is also potentially > > forcing to umount then mount when mounting has been forgotten before. > > well, I guess at some point we decided this was a good idea > to make perf more user friendly > > AFAICS we do this only for debugfs and tracefs.. procfs > and sysfs are mounted most of the time anyway Note, if sysfs isn't already mounted, than nothing will get mounted by perf. As sysfs is a requirement to get to /sys/kernel/trace and debug. > > we could track and unmount on exit, but I'd say let's have > someone complaining about it first ;-) > Agreed. Although, I use perf/trace-cmd to mount that directory for me :-) -- Steve -- To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to majord...@vger.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/
